Your right I have got that I usually play music from phone or im partial to a podcast from BBC sounds . Japanese import my van so only gets radio 2 and radio Scotland till Aviemore , West of there its nan gael if your lucky or unlucky if you dont speak Gaelic . My lad put his Spotify on my phone a few days ago so I've downloaded Johnny Walkers jukebox and Tarantino sound tracks for offline. Away tomorrow in van so be putting some shite on here I suppose.We like a bit of his masters voice..
The adapter plugs into your fag lighter. It has Bluetooth.
Your phone connects to that then it does a local FM/radio broadcast on the channel you choose.
Tune your car radio into that channel and voila, your phone Bluetooth output comes out of your car speakers.